If you are planning to hold a firework display please see 
Firework Guidance - Bailiwick of Guernsey Airspace [342kb] which outlines what is required before a private or a public display can place within certain distances and areas of Guernsey Airport.
If a private or public fireworks display is being planned on or around the coastline of Guernsey or taking place offshore in Guernsey territorial waters then a notification to Guernsey Coastguard is also required.
Please use this application process if you are required to apply for a display.